Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 16.13, Problem 71AAP
To determine
Describe the changes happen in the domain structure when the applied field is increased.
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DC and AC Subject:
Find the relative permeability of the typical ferromagnetic material whose magnetization curve
is shown. H = 50, 100, 500 and 1000 A-turns/m.
Answer these:
H = 100, 500, and 1000 A-turns/n
Engineering science
Distinguish elastic, electrical and magnetic hysteresis in different Materials.
a) Draw the hysteresis curves for a hard and a soft magnetic material. Label the axes and describe how you can get information about the saturation magnetisation, remanence and coercivity from the graphs.
b) Which of the two materials would you use as a fridge magnet? Explain
Chapter 16 Solutions
Foundations of Materials Science and Engineering
Ch. 16.13 - Prob. 1KCPCh. 16.13 - Prob. 2KCPCh. 16.13 - Prob. 3KCPCh. 16.13 - Prob. 4KCPCh. 16.13 - What is the relationship between B and H?Ch. 16.13 - Prob. 6KCPCh. 16.13 - Prob. 7KCPCh. 16.13 - Prob. 8KCPCh. 16.13 - Prob. 9KCPCh. 16.13 - Prob. 10KCP
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- DC and AC subject: Find the relative permeability of the typical ferromagnetic material whose magnetization curve is shown. H = 50, 100, 500 and 1000 A-turns/m.arrow_forwardA magnetic actuator is expected to operate at 400°C.a) Using a clearly labelled diagram, describe the effect of temperature onsaturation magnetization. b) From the table above, suggest a material that could be used to make themagnetic actuator. Explain.arrow_forward2. Explain the magnetic classification of materialsarrow_forward
- 8. Please select the correct answer: (a) These materials have a negative magnetic susceptibility, and when are placed in a magnetic field, develop a magnetization vector in the opposite direction to the applied field (b) These materials have a positive and very large magnetic susceptibility, and may have large permanent magnetizations even in the absence of an applied magnetic field. (c) These materials have a small positive magnetic susceptibility, and when are placed in a magnetic field, develop a magnetization vector along the direction of the applied field. (I) Paramagnetic (II) Ferromagnetic (III) Ferrimagnetic (IV) Diamagneticarrow_forwardWith the aid of diagram Define an electromagnet? Explain with the aid of diagram how electromagnetisms work? Explain with the aid of diagram what do you mean by right hand rule? Give some strength of electromagnetic fields. What do you mean by electromagnetic induction? Explain with the aid of diagram what is an electromagnetic wave? State the applications of electromagnetism.arrow_forwardFerritic stainless steel has no . . in * their content. O carbon O iron O chromium O nickelarrow_forward
- 令all Answer by true or false * True False The magnetic saturation means the domains of iron crystal arranged in multi directions with respect to field. Answer by true or false * True False D.C shunt generators are most suitable for arc winding Page 2 of 2arrow_forward1-Zirconium belongs to which type of structure a. SC b. FCC c. BCC d. HCParrow_forward8:01 PM 4G l QUESTION1 With the aid of diagram Define an electromagnet? Explain with the aid of diagram how electromagnetisms work? Explr ith the aid of diagram what do you mean by right hand rule? Give some strength of electromagnetic fields. What do you mean by electromagnetic induction? Explain with the aid of diagram what is an electromagnetic wave? State the applications of electromagnetism. QUESTION2 ( 2.1 What is an inductor? 2.2. What are the four factors the inductance value depends upon in terms of physical parameters? 2.3 List six types of inductor cores. 2.4 What are self-inductance and Mutual inductance? 2.5 What is called the co-efficient of coupling? 2.6 How to calculate the value of Inductors connected in series and parallel? 2.7 How to calculate the energy stored in an inductor? 2.8 Brief the Inductor behavior in AC and DC circuits 2.9 List four applications of inductors. 2.10 State the relationship between the inductance value of a coil and the amount of emf it…arrow_forward
- Which of the following statements are true? (This question has more than one correct answer) a. Higher thermal conductivity in metals arises in part from the properties of the free electron model of metals b. Dislocations and imperfections reduce the efficiency of phonon heat transfer c. Significant heat transfer occurs by both phonons and electron energy level excitation in both metals and ceramics d. Dislocations and imperfections increase the efficiency of phonon heat transferarrow_forwardQuestion B4 a) The strength of the magnetic field B at a distance r from a straight conductor car- is the permeability rying a current I is given by the expression B = of free space with the value 4n × 10-7 NA-2. Two long straight wires are lined up parallel to one another at a separation of 0.2 m. Currents of 4 A and 2 A flow through the wires, both in the same direction. Calculate the value of the magnetic field strength due to the two wires at a point P on the mid-plane between them. where 2r b) Calculate period of a small satellite which is making a circular orbit just outside a planet of density 4.0 × 10³ kg/m³. Provide the answer in SI units and in hours. Use the value of the universal gravitational constant 6.7 x 10-11 N kg-2m-2. c) A mass of 0.01 kg is suspended from a light spring of natural length 80 mm and causes the spring to extend by 10 mm. The mass is pulled down a further 5 mm and then released. Assuming g = 9.8 m/s², calculate: i) the spring constant. ii) the period of…arrow_forward10 cm 1.25 100 0.05 em 30 om 6.75 0.30 625 10 cm 00 1000 Magastaing inoway (A Ts 10 cm 30 cm- A two-legged magnetic core with an air gap is shown in Fig.1. The depth of is 5 cm, the length of the airgap is 0.08 cm, and the number of turns on the coil is 800. The magnetization curve of the core material is shown in Fig.2. The magnetic field density in air gap is 0.7 T. What is the total MMFin A-Turns required to magnetize both the iron core and airgap? Nas deasiy B(Tarrow_forward
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